Also search by Product Code or Bar Code

When searching on main screen for a product, all items pop up showing any that start with the info you type in.

However when you do the same for Product Code or Bar Code, nothing shows.

I tested it with a known Product Code and pressed enter and that item was put in the sale area.

I wanted to get a list of all Product Codes starting with a certain few letters, but nothing Shows.

Is this an Error?

The Reason I ask is I need to be able to see all items (and stk qty if possible) of a certain Product Code type